advanced material flow analysis to assess environmental ... · advanced material flow analysis to...

Nguyet Tran, Dirk Weichgrebe, Karl-Heinz Rosenwinkel [email protected]

Institute for Sanitary Engineering and Waste Management Leibniz University Hannover, Germany

Advanced material flow analysis to assess environmental and resource management of agro-food processing craft villages

in Red River Delta, Vietnam

1

mailto:[email protected]

Advanced material flow analysis to assess environmental and resource managment of agro-food processing villages in Red River Delta, Vietnam

Problems

agro-food processing villages: - critical water consumption; organic, nutrient; secondary contamination from animal production - current responses: end-of-pipe solutions, insufficent material viewpoint!

Objectives: - Quantifying and assessing problems and potentials in a sustainble view of material management - By developing an advanced regional material flow analyis method: goods, org C, N, and P

2 [map: modified after wikipedia, 2017] *MARD, 2013: Department of commercial processing of agriculture, forestry, aquaculture, and salt, Minister of Agricultural and Rural Development

fertility 50% craft villages in VN [MARD, 2013]

dense population

[foto: internet]

cottage rural industry

[foto: internet] [foto: internet]

sewer Dai Lam, Bac Ninh

arrowroot starch production Duong Lieu, Ha Noi

glass noodle sheet drying, Duong Lieu, Ha Noi

pove

rty

elim

inat

ion

Introduction

Red River Delta:

rice cultivation economic, cultural centre

Methodology: Statistical Material Flow Analysis with software STAN [adapted from Bunner and Rechberger , 2017]


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inspired from Laner et al. (2015) after Weidema and Wesnæs (1996)

and Hedbrant and Sörme(2001)

boundary: rural regional Red River Delta, 2015

…from micro- to marco production…

Rice vermicelli production /slurry soaking, Khac Niem, Bac Ninh (Apr 2015)

Irrigation canal, Duong Lieu, Ha Noi (Nov 2014)

(Mar – Apr 2015, Dec 2015 – Jan 2016 )

Results


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Materials behavior: total agro-food productions, rural Red River Delta, 2015

CS: cassava starch, AS: arroowroot starch, GN: glass noodle, RV: rice vermicelli, RL: rice liquor, CL: cassava liquor, RN: rice noodle, Tf: tofu FP: food production

100% import 10,496,942±2.5% t/a Export: 10,393,307±2.5% t/a

deposited in sewer andlocal w

ater bodies

87.5% surface water

5%

5% recycled

1.5% gases

10.3%

raw material

89.6%

WATER

0.02% auxiliaries

9.6% solid residues

84% wastewater

0.4%

4.6%

1%

505,771±5.1% t/a food products

Layer of goods


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Results Su

bsta

nce

beha

vior

, tot

al fo

od p

rodu

ctio

ns, R

ed R

iver

Del

ta, 2

015

CS: cassava starch, AS: arroowroot starch, GN: glass noodle, RV: rice vermicelli, RL: rice liquor, CL: cassava liquor, RN: rice noodle, Tf: tofu

66%

21%

12%

100% TOC 100% TN

41.6%

41% 15% 2%

572±4.6% t/a import

100% TP

25% 17%

57%

import 100% goods

5% product

5% recycled

1% STOCKS

10,496,942±2.5% t/a

87.5% surface water

Limit: QCVN 40:2011/BTNMT national technical regulation for industrial waste water

3,050±2.6% t/a import

106,347±2.2% t/a import

sew

er e

mis

sion

flow

s

Conclusions


Recommendations

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Thank you! For further discussion, welcome to my poster!

1. LINEAR material cycles: resources loss as pollutants in sewer flows! 2. Data uncertainty analysis: up-scaling, model consistency and transparency

close the loop: industrial ecology, ciruclar economy, autarky system

Intergrated production/process environment protection

anaerobic > aerobic, advanced domestic biogas plant

Environmental planning: individual production, preferably „designated village production cluster“

advanced material flow analysis to assess environmental ... · advanced material flow analysis to...

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